- Definitions|2
- Thesaurus|295
- Abbreviations|0
39 entries under secret topic. ×
| mystery(noun, difficulty, question, puzzle) | |
| subtlety(noun, difficulty, question, puzzle) | |
| difficulty(noun, challenge, question, puzzle) | |
| cabbalism | |
| closed book(expression, question, puzzle, subtlety) | |
| inscrutability(noun, difficulty, question, puzzle) | |
| puzzle(noun, difficulty, question, uncertainty) | |
| sixty-four-thousand-dollar question(expression, question, puzzle, subtlety) | |
| tough nut to crack(expression, idiom, difficulty, question) | |
| brainteaser(noun, difficulty, challenge, question) | |
| braintwister(difficulty, question, puzzle, subtlety) | |
| charade(difficulty, question, puzzle, subtlety) | |
| chiller(difficulty, question, puzzle, subtlety) | |
| cliffhanger(difficulty, question, puzzle, obscurity) | |
| crux(difficulty, question, puzzle, obscurity) | |
| cryptogram(difficulty, question, puzzle, obscurity) | |
| grabber(difficulty, question, puzzle, perplexity) | |
| inscrutableness(difficulty, question, puzzle, subtlety) | |
| mindboggler(difficulty, question, puzzle, subtlety) | |
| mystification(question, puzzle, obscurity, subtlety) |
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| APA | Smart Define. (2015). abstruseness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/abstruseness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "abstruseness thesaurus" https://smartdefine.org/abstruseness/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, abstruseness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/abstruseness/thesaurus/synonyms>. |
| MLA | Smart Define. "abstruseness thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/abstruseness/thesaurus/synonyms> |